See also:

Locking the trunk separately
You can lock the trunk separately. If you then unlock the vehicle centrally, the trunk remains locked and cannot be opened. Close the trunk lid. Take the mechanical key out of the SmartKey. ...

Crash-responsive emergency lighting
The interior lighting is activated automatically if the vehicle is involved in an accident. - To switch off the crash-responsive emergency lighting: press the hazard warning lamp button. or - ...

Please bear the following in mind
At the onset of winter, have your vehicle winterproofed at a qualified specialist workshop, e.g. at an authorized Mercedes- Benz Center. Observe the notes in the "Changing a wheel" ...